Grinding-machine.



No.863 .937. I PATENTED AUG. 20, I907.

. 1E. NOE.

GRINDING MACHINE,

APPLICATION rum) mu. :8, 1905.

l mm THE "cams PETERS cm, WASHINGTON, u. c.

FELIX NOE, OF GOLOGNE-EHRENFELD, GERMANY.

GRINDING-MACHINE Specification of Letters Patent.

Patented Aug. 20, 1907.

Application filed March 28,1905! Serial No. 252,508.

To all whom it may concern:

Be it known that I, FELIX Not, a subject of the German Emperor, and aresident of Cologne-Ehrenfeld, Germany, have invented certain new anduseful Im provements in Grinding-Machines, of which the following is aspecification.

This invention has for its object a profile grinding and shaping-machinefor stone-blocks, the essential feature of which is that the tablecarrying the blocks to be worked can, during the working, be held in aslanting position, in consequence of the bed, which receives the same ina horizontal direction, being provided with semicircular cheeks, whichcan be turned around the center of their orbits in correspondinglyshaped journal-blocks. The rotation is effected by a regulating-device,whose wheels are connected to the cheeks themselves in the manner that aspecial axle for rotating the cheeks, as Well as the ratchet-wheels, isnot required.

Such a profile grinding-machine has over the now known constructions theadvantage that the tool can be turned within thewidest possible limitswith respect to the block or piece to be worked, while the wholestructure is nevertheless very strong and steady.

On the accompanying drawing such a grinding-machine is shown in Figure lin an end View partly in section, Fig. 2 in a planview, Fig. 3 in aside-view, partly in elevation and partly in section, Fig. 4 shows adetail on an enlarged scale.

Similar letters refer to similar parts throughout the several views.

On a column or pillar 11 provided with guides a a slide b can be movedup and down, by turning a spindle e, on the threaded part of which thenut b of the slide b can be shifted. The slide 1) carries the spindle con which sits the grinding-disk, and which spindle is driven by thebelt-pulley d. The spindle e, by which the slide b is raised andlowered, is turned by the hand-wheel h on the shaft 9, the bevel-wheelsf transmitting the movement from shaft 9 to spindle e. In the bed is thetablet can be shifted horizontally by the screw-spindle Z, 011 which canbe shifted the nut 1 fastened to the table 1'. The table 1', with thebed is, can moreover be turned on a horizontal axle and be adj usted inany slanting position, for which purpose there have been arranged on thesame semicircular cheeks m, which can be turned around the center oftheir orbit, in correspondingly shaped journal-blocks n. The arrangementis preferably such that the center of the orbit of the cheeks mcoincides with the center of the spindle Z. The bed is, with the table1', is turned in the journal-blocks n by a toothed segment 0 rigidlyconnected to one of the cheeks m, which segment can be turned by atoothed wheel p, which has its bearings on the journal-block n. Thetoothed wheel 19 is adjusted through a pawl 1', by means of a lever q.Instead of the latter arrangement a worm-gear can also be used forturning the cheeks m in the journal-blocks 71.

What I claim as my invention and desire to secure by United StatesLetters Patent is 1. In a grinding machine, the combination of :1 bed, asemi-circular cheek secured at each end of the bed, bearing blocks inwhich said cheeks are swingingly mounted, means engaging the checks forswinging the cheeks and the bed, a table arranged on the bed and ascrewspindic engaging the table to adjust the table longitudinally onthe bed; the axis about which said cheeks swing coinciding with the axisof said spindle.

2. In a grinding machine, the combination of a bed, a semi-circularcheek secured at each end of the bed, bearing blocks in which saidcheeks are s\\'ingingly mounted, :1 toothed segment rigidly secured onone of said cheeks, means engaging said segment for swinging the cheeksand the bed, a table slidingly arranged on the bed and held fromswinging movement thereon, a nut on said table projecting downwardlythrough the bed, and a screw spindle extending below the bedlongitudinally thereof and engag ing said nut to adjust the tablelongitudinally on the bed, the axis of said spindle coinciding with theaxis about which the cheeks and the bed swing.

In testimony whereof I have signed my name to this specification in thepresence of two subscribing witnesses.

FELIX Non.

Witnesses l \VILLIAM Krtnrrnus. ALLEN F. WEYL.

